It is narrated from Abd al-Rahman bin Aflah (may Allah have mercy on him) that a group of the Companions (may Allah be pleased with them) sent him to Sayyiduna Ibn Umar (may Allah be pleased with them both), asking him about the middle prayer (al-salat al-wusta). He said: "We used to speak of it as being the prayer in which the Messenger of Allah (peace and blessings be upon him) was turned towards the Qiblah: that is, the Zuhr prayer."
This hadith is narrated from Abd al-Rahman bin Aflah (may Allah have mercy on him), from Sayyiduna Ibn Umar (may Allah be pleased with them both), only with this chain, and Musa bin Rabi'ah (may Allah have mercy on him) is alone in narrating it.
Hadith Referenceالمعجم الأوسط / باب الألف / 240
Hadith Gradingمحدثین:رجاله موثقون
Hadith Takhrij«قال الهيثمي: رجاله موثقون «مجمع الزوائد ومنبع الفوائد، ج 1، ص 309»» «قال الطبراني: لا يروى عن ابن أفلح عن ابن عمر إلا بهذا الإسناد تفرد به موسى بن ربيعة الجمحي «الإعلام بسنته عليه الصلاة والسلام بشرح سنن ابن ماجه الإمام، ج 3، ص 308»» «أخرجه البيهقي فى «السنن الكبرى» برقم: 2190، والطحاوي فى «شرح معاني الآثار» برقم: 998»